I'm sure everyone is aware of the issue after the recent update that breaks the interaction. The workaround to this is pretty simple. You just have to crouch and be as close to the item as possible. As the video shows, I cant interact with the shelter, rocks, or sticks, but if I crouch then I can. The shelter is a bit tricky, you have to walk around and find the right spot but once you do you can openly save and sleep! Hopefully the developers can use this and fix it! :)